Btrfs: change btrfs_del_leaf to drop locks earlier

[linux-block.git] / fs / btrfs / ctree.c

diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 3af777357acb495d876d35bdfa94be205dfaf833..f6916ceb3920fde476615bc20dfaa1374528a6dc 100644 (file)
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -3630,15 +3630,22 @@ noinline int btrfs_del_leaf(struct btrfs_trans_handle *trans,
 {
        int ret;
        u64 root_gen = btrfs_header_generation(path->nodes[1]);
+       u64 parent_start = path->nodes[1]->start;
+       u64 parent_owner = btrfs_header_owner(path->nodes[1]);
 
        ret = del_ptr(trans, root, path, 1, path->slots[1]);
        if (ret)
                return ret;
 
+       /*
+        * btrfs_free_extent is expensive, we want to make sure we
+        * aren't holding any locks when we call it
+        */
+       btrfs_unlock_up_safe(path, 0);
+
        ret = btrfs_free_extent(trans, root, bytenr,
                                btrfs_level_size(root, 0),
-                               path->nodes[1]->start,
-                               btrfs_header_owner(path->nodes[1]),
+                               parent_start, parent_owner,
                                root_gen, 0, 1);
        return ret;
 }